Pith Number

pith:RCDNEFE7

pith:2025:RCDNEFE7BXWRILLL52M3RWIAOA

not attested not anchored not stored refs pending

Contractive difference-of-convex algorithms

Michael Th. Rassias, Qiao-Li Dong, Songnian He

arxiv:2505.10800 v1 · 2025-05-16 · math.OC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RCDNEFE7BXWRILLL52M3RWIAOA}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T11:04:05.948553Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8886d2149f0ded142d6bee99b8d90070007fa597460a59a8d2b2560abc2ba9ed

Aliases

arxiv: 2505.10800 · arxiv_version: 2505.10800v1 · doi: 10.48550/arxiv.2505.10800 · pith_short_12: RCDNEFE7BXWR · pith_short_16: RCDNEFE7BXWRILLL · pith_short_8: RCDNEFE7

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/RCDNEFE7BXWRILLL52M3RWIAOA \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 8886d2149f0ded142d6bee99b8d90070007fa597460a59a8d2b2560abc2ba9ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d7ce2b058b46c1830ad2dcae5046b188e597c2af1ddd12cb1176c3ba4698fd3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2025-05-16T02:38:37Z",
    "title_canon_sha256": "00693eda9b455b3907ac0ebfe166552a0bf0993e78a2de05a4f2c5ee87b24f95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.10800",
    "kind": "arxiv",
    "version": 1
  }
}